I sent some saves as well: Frozen divs in transcaucasus md with empty equipment slots. Some mots with empty slots converting to rifle divs. The empty slot stayed while the filled tank slots were removed for the mot->rifle conversions.

Could it be made a feature of the equipment upgrade function to remove empty non-TOE slots ? That's also a problem related to the german mot divs of the 1941 campaign starting with non-TOE equipment I reported to Pavel some time ago - the non-TOE equipment (most often Flak guns) is removed but the empty slots stay.

The non-removal of empty equipment slots seems to apply only to non-TOE items, in a testgame a hungarian mountain brigade changed their motorcycle squads (TOE item) to rifle squads (upgrade path) and the motorcycle equipment slot was removed. So it does work, just not always.